Diagnostic Functions
Overview
Use diagnostic functions to find the state of the TeSys H motor starter and understand the cause of tripping. When there is a detected error or trip condition, the device is in a safe, disconnected state.
Internal errors cannot be reset and are stored in the device. If more than 14 internal errors are detected, you can no longer operate the device.
Before you can leave the safe, disconnected state, you must reset the trip condition. To reset an external error, push the SET/RESET button and release it within 2 s.
The tables in this section describe the combination of LED states, position of signaling contacts, and reset possibilities, in normal conditions and trip or error conditions. The following symbols indicate whether an LED is on, off, or flashing.
LED on
LED off
LED flashing at approximately
2 Hz (50:50)
Diagnostics for Normal Conditions
|
Description |
LED combination |
Signaling contact |
Reset |
|||
|---|---|---|---|---|---|---|
|
110–230 Vac or 24 Vdc |
TRIP/ERR |
|
|
|||
|
Off Not connected to the control supply, or control supply is off. |
|
|
|
|
– |
|
|
Ready to start Supply voltage is available. No trip or detected error. The motor starter switches on when a run command is given. |
|
|
|
|
– |
|
|
Running in direction 1 A command is on I2. |
|
|
|
|
– |
|
|
Running in direction 2 A command is on I1. |
|
|
|
|
– |
|
Diagnostics for Internal Error Conditions
|
Description |
LED combination |
Signaling contact |
Reset |
|||
|---|---|---|---|---|---|---|
|
110–230 Vac or 24 Vdc |
TRIP/ERR |
|
|
|||
|
Internal error detected. The device must be replaced. |
|
|
|
|
Not possible |
|
|
Checksum error during determination of the thermal system state. The reset mode must be manual or remote. The device does not reset if the reset mode is automatic. |
|
|
|
|
Possible |
|
Diagnostics for Trip Conditions
|
Description |
LED combination |
Signaling contact |
Reset |
|||
|---|---|---|---|---|---|---|
|
110–230 Vac or 24 Vdc |
TRIP/ERR |
|
|
|||
|
Thermal overload protection function |
||||||
|
Overload trip occurred while the motor was running in direction 2. Time to reset is counting down. Reset is impossible. |
|
|
|
|
Not possible |
|
|
Overload trip occurred while the motor was running in direction 1. Time to reset is counting down. Reset is impossible. |
|
|
|
|
Not possible |
|
|
Overload trip occurred while the motor was running in direction 2. Cool down period is in progress. If reset mode is manual or remote, reset is possible. If reset mode is automatic, device resets automatically after the cool down period (20 minutes). |
|
|
|
|
Possible |
|
|
Overload trip occurred while the motor was running in direction 1. Cool down period is in progress. If reset mode is manual or remote, reset is possible. If reset mode is automatic, device resets automatically after the cool down period (20 minutes). |
|
|
|
|
Possible |
|
|
Phase unbalance |
||||||
|
The motor currents differ from each other by more than 33 %. Manual or remote reset is possible immediately. |
|
|
|
|
Possible |
|
Diagnostics for Error Conditions
The following events can cause error conditions:
-
Phase loss: two or more phases are missing.
-
No connected motor.
-
The motor current is lower than the minimum configurable current for more than 2 seconds, on at least two phases.
|
Description |
LED combination |
Signaling contact |
Reset |
|||
|---|---|---|---|---|---|---|
|
110–230 Vac or 24 Vdc |
TRIP/ERR |
|
|
|||
|
Error occurred while the motor was running in direction 2. When the phases return, the error is cleared automatically. |
|
|
|
|
Not required |
|
|
Error occurred while the motor was running in direction 1. When the phases return, the error is cleared automatically. |
|
|
|
|
Not required |
|